Machines + Sprites

sandbox

Properties

vendor: Fly.io
url: https://fly.io/machines/
whatItIs: Hardware-isolated VMs launching in 1–12s with persistent storage; Sprites are agent-tuned variants with Claude pre-installed.
hosting: managed-only
pricingModel: per-second + storage
sandboxRuntime: Firecracker microVM
modelProviders: agnostic
stateModel: persistent volumes
toolModel: code-exec
includesBrowser: false
includesMemory: true
longRunning: unbounded
hitlSupport: false
observability: basic logs
maturity: ga
launched: 2026-Q1
notes: Sprites (Jan 2026) are designed for agentic coding: pre-warmed VMs with Claude already installed.